[wasm] Add inspector test for stepping

src/wasm/wasm-debug.cc

Index: src/wasm/wasm-debug.cc
diff --git a/src/wasm/wasm-debug.cc b/src/wasm/wasm-debug.cc
index c4f4c29053e15a63de0f5d79be21bef9d71d7adf..3b8d44bda2251bbb3a7983f571bc173c1cf364ea 100644
--- a/src/wasm/wasm-debug.cc
+++ b/src/wasm/wasm-debug.cc
@@ -165,7 +165,7 @@ class InterpreterHandle {
         return thread->Step();
       case StepOut:
         thread->AddBreakFlags(WasmInterpreter::BreakFlag::AfterReturn);
-        return thread->Step();
+        return thread->Run();
       case StepNext: {
         int stack_depth = thread->GetFrameCount();
         if (stack_depth == last_step_stack_depth_) return thread->Step();